Bob,

Thanks for all the helpful information. Is the black muffler you were describing the same thing as your lite-mufflers? I tried looking up some info on them in your Jett Engineering Web page but the lite muffler web page would never come up. I'm thinking about trying one for my Jett 50 and do some expermenting with different props. Can you give me the part number for that particular muffler and price. I'll call Dub and order one.

Thanks, Ken